package com.hubu.map;
public class BTreeMapTest {
    public static void main(String[] args) {
        BTreeMap<Integer,String> map=new BTreeMap<>();
        map.put(12,"hello");
        map.put(13,"world");
        map.put(14,"netty");

        System.out.println(map.get(12));
        System.out.println(map.get(13));
        System.out.println(map.get(14));
        System.out.println(map.get(15));
        System.out.println(map.size());
    }

}
